Online Parts Store › Phillips Machine Screw - Pan Head. 10-24 x 1/2" Image 1 of 1 Phillips Machine Screw - Pan Head. 10-24 x 1/2" $23.74 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Square Tapping Screw - Flat Head,#8 x 1-1/4" $28.68 Nylon Insert Locknut - Stainless 1/4-20 $27.84 Phillips Tapping Screw - Pan Head, #12 x 2" $30.36 Phillips Wood Screw - Flat Head, #14 x 3" $73.50 Flat Washer, 5/16", .062" Thick, OD 9/16" (A/N Style) $10.20